Crazy Fart Detector is the practical joke you've been waiting for! Next time you come across an offensive smell, fire up Crazy Fart Detector and pretend to track it down. The fully animated visual readout is controlled by the angle you tilt your phone. Hold it vertical and it gets an all-clear reading, but tilt it down to horizontal and it sets off the visual and auditory alarms! When the final warning level is shown, point the phone at the offending smell. With a bit of practice you'll have everyone fooled and wondering if your phone really is a smell detector!